Detachable goods lifting arm



FIG. 1 is a side perspective view of a detachable goods lifting arm, showng my new design;

FIG. 2 is a side perspective view opposite that shown in FIG. 1;

FIG. 3 is a rear elevational view thereof; and,

FIG. 4 is a front elevational view thereof. 

The ornamental design for a detachable goods lifting arm, as shown and described. 